Weighing scale



FIG. 1 is a top plan view of a weight scale showing our new design;

FIG. 2 is a right side elevational view, the left side being a mirrorimage;

FIG. 3 is a rear elevational view;

FIG. 4 is a front elevational view; and

FIG. 5 is a bottom plan view thereof.

The ornamental design for a weighing scale, as shown and described.